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libsysprof-capture: Add SysprofCaptureJitmapIter to replace GHashTable

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Change `sysprof_capture_reader_read_jitmap()` to return a `const
SysprofCaptureJitmap *` (like the other `read` functions), and add a new
`SysprofCaptureJitmapIter` type to allow easy iteration over the jitmap.

This allows a use of `GHashTable` to be removed from the API. It breaks
the libsysprof-capture API and ABI.

All the callers iterate over the jitmap rather than looking up elements
by key. If that functionality is needed in future, additional API can be
added to allow it on `SysprofCaptureJitmap`.

Signed-off-by: Philip Withnall <withnall@endlessm.com>

Helps: #40
This commit is contained in:
Philip Withnall
2020-07-02 12:43:15 +01:00
parent 75b69d0a89
commit 6a45f020f7
6 changed files with 99 additions and 39 deletions
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18
src/libsysprof-capture/sysprof-capture-reader.h
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@ -115,7 +115,7 @@ const SysprofCaptureProcess *sysprof_capture_reader_read_process (
SYSPROF_AVAILABLE_IN_ALL
const SysprofCaptureSample *sysprof_capture_reader_read_sample (SysprofCaptureReader *self);
SYSPROF_AVAILABLE_IN_ALL
GHashTable *sysprof_capture_reader_read_jitmap (SysprofCaptureReader *self);
const SysprofCaptureJitmap *sysprof_capture_reader_read_jitmap (SysprofCaptureReader *self);
SYSPROF_AVAILABLE_IN_ALL
const SysprofCaptureCounterDefine *sysprof_capture_reader_read_counter_define (SysprofCaptureReader *self);
SYSPROF_AVAILABLE_IN_ALL
@ -150,5 +150,21 @@ bool sysprof_capture_reader_read_file_fd (
const char *path,
int fd);
typedef struct {
/*< private >*/
void *p1;
void *p2;
unsigned int u1;
void *p3;
void *p4;
} SysprofCaptureJitmapIter;
SYSPROF_AVAILABLE_IN_3_38
void sysprof_capture_jitmap_iter_init (SysprofCaptureJitmapIter *iter,
const SysprofCaptureJitmap *jitmap);
SYSPROF_AVAILABLE_IN_3_38
bool sysprof_capture_jitmap_iter_next (SysprofCaptureJitmapIter *iter,
SysprofCaptureAddress *addr,
const char **path);
SYSPROF_END_DECLS